Description
JUYI High Voltage DC Motor Speed Controller JYQD-V7.5E 36V 48V 72V 16A PWM/Analog Driver Board
Application Notes:
1. Voltage & Power Compliance
Verify that the motor’s voltage and power parameters do not exceed the driver board’s rated range (36-72V, ≤100W).
2. Hall Sensor & Phase Wiring Adjustment
Compatible with 120° Hall-sensor BLDC motors.
⚠ ️ Wiring sequences (Hall/motor phases) may vary by manufacturer. Optimize performance by adjusting sequences.
3. Thermal Management Guidelines
- No heatsink required for motors <100W (ensure natural ventilation).
- For heatsink installation: Insulate backside power components to avoid short circuits.
4. 5V Port Usage Restriction
The 5V output port must only connect to onboard peripherals (e.g., potentiometer, switch) for speed/direction control. External devices are prohibited.
5. Signal Port Specifications
The "Signa" pin outputs motor speed pulses with <5mA current.
Dirgarm without heatsink Dirgarm with heatsink
Wiring Diagram:
1. Control Port (Left)
- GND — Internal control ground of the driver board.
- VR — Speed control port. Analog voltage speed regulation (0-5V), linear speed control from low to high. For external PWM speed control, ensure it shares the same ground as the driver board.
- Z/F — Forward/reverse rotation control port. Connect to 5V or leave open for one direction; connect to GND for the opposite direction.
- Signal — Motor speed pulse signal output port (5V pulse signal).
- EL — Enable control. Connect to 5V to allow operation; connect to GND to disable operation.
- 5V — Internal 5V output for powering potentiometers, switches, or direction control (do not connect external devices).
2. Hall Sensor Port (Top Left)
- 5V — Positive terminal for motor Hall sensors.
- Ha — Motor Hall signal Ha.
- Hb — Motor Hall signal Hb.
- Hc — Motor Hall signal Hc.
- GND — Negative terminal for motor Hall sensors.
3. Power Port (Right)
- VCC — DC power supply positive (+).
- GND — DC power supply negative (-).
- MC — Motor phase line.
- MB — Motor phase line.
- MA — Motor phase line.
4. Port Spacing
- Control and Hall ports: 2.54mm pitch.
- Power ports: 3.96mm pitch.
5. Installation Note
When adding a heat sink or mounting the driver board, ensure proper insulation of the power transistors to avoid short circuits.
Dimensional Drawing: